How to distinguish the authenticity of Five Emperors' coins?

1. Look at the size.

The real coins of the Five Emperors (Shunzhi Tongbao, Kangxi Tongbao, Yongzheng Tongbao, Qianlong Tongbao, Jiaqing Tongbao) are only Xiaoping coins, which have a face value of one penny and a diameter between 24 and 28 mm. Of course, there are some exceptions. , but that's not the majority, and the diameter difference won't be too much.

2. Look at the thickness.

The Five Emperors' coins are all small flat coins, with a diameter of about 1-3 mm. Even the large Qianlong coins are not more than 4 mm thick. If you encounter a string of Five Emperors coins that are extremely thick, 5-10 mm, and the thickness of each coin is very consistent, then this string of coins must be fake.

3. Listen to the sound. The sound made by ancient coins is pure and pure, and there will be no turning sound; the fake money will make a crisp sound.

4. Look at the patina.

The so-called patina is the oxide film formed on copper coins during hundreds of years of circulation. Since each of the genuine Five Emperors coins has been around for two to three hundred years, they will all have varying degrees of patina.

5. Weigh. Ancient coins have been aged for a long time and have lost their temper. They feel slightly lighter than new coins.

Extended information:

"Most ancient coins are unearthed. There will inevitably be different rust stains on the coins. Of course, the rust stains will have different colors. Common ones There are green rust and red spots, as well as blue rust or dark brown copper.

But no matter what kind of rust, modern people can easily identify the genuine rust. It is a natural rust that has taken hundreds or even thousands of years to form, such as the hard green in patina. This kind of green is very hard. Generally, the hardness of fake patina cannot reach the effect of genuine hard green.

There is still some rust, which has been integrated into the coin itself due to long-term corrosion. We call it soil greening. This kind of rust generally does not fall off easily, but the rust on fake coins is easy to fall off. But now. The technology is becoming more and more developed, and ordinary rust stains are easier to identify. If it is painted with real rust, ordinary people will not be able to identify it. Collectors should pay special attention when choosing coins with a long history."

Reference: Baidu Encyclopedia - Five Emperors' Money